ZIP code
51240
Inwood, IA
51240 covers Inwood in Lyon County, with 1,842 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 51240. Methodology
ZIP code map of 51240
About ZIP code 51240
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 51240. Not ACS. Methodology
People in 51240
Race
- White1,718
- Black or African American6
- American Indian or Alaska Native4
- Asian6
- Native Hawaiian and Pacific Islander1
- Other race47
- Two or more races34
Hispanic or Latino (any race): 85
Age
- Under 10323
- 10 to 19271
- 20 to 29187
- 30 to 39239
- 40 to 49184
- 50 to 59164
- 60 to 69238
- 70 to 79101
- 80 and older109
Income and housing in 51240
Education
- High school graduate90.4%
- Bachelor's degree17.6%
- Graduate degree2.1%
Places covering 51240
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Inwood51.1%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Lyon County94.6%
- Sioux County5.4%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
48.9% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 51240
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 1,700 | |
| 2006 | 1,607 | |
| 2007 | 1,687 | |
| 2008 | 1,620 | |
| 2009 | 1,689 | |
| 2010 | 1,706 | |
| 2011 | 1,696 | 1,792 |
| 2012 | 1,672 | 1,780 |
| 2013 | 1,739 | 1,790 |
| 2014 | 1,755 | 1,700 |
| 2015 | 1,944 | 1,740 |
| 2016 | 2,180 | 1,690 |
| 2017 | 2,337 | 1,700 |
| 2018 | 2,273 | 1,700 |
| 2019 | 2,103 | 1,740 |
| 2020 | 2,172 | 1,740 |
| 2021 | 1,837 | 1,770 |
| 2022 | 1,629 | 1,750 |
| 2023 | 1,842 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 51240
12 nearest ZIP centroids (any distance)
- 51230Alvord7.6 miPop 517 · Income $77,750
- 57013Canton8.6 miPop 4,378 · Income $77,813
- 57027Fairview8.7 miPop 199 · Income —
- 51241Larchwood9.8 miPop 2,052 · Income $89,214
- 51247Rock Valley10.0 miPop 5,028 · Income $73,451
- 51242Lester10.4 miPop 346 · Income $86,406
- 51235Doon12.3 miPop 1,152 · Income $63,194
- 57032Harrisburg13.6 miPop 9,558 · Income $107,241
- 57034Hudson13.7 miPop 720 · Income $94,250
- 57077Worthing14.8 miPop 1,444 · Income $92,727
- 57056Rowena15.3 miPop 26 · Income —
- 56138Hills16.2 miPop 1,046 · Income $68,889
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 51240, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 51240 FAQ
- What city is ZIP code 51240 in?
- 51240 is in Inwood, IA.
- What county is 51240 in?
- 51240 is in Lyon County.
- What is the median household income in 51240?
- The median household income in 51240 is $80,948.
- Which ZIP codes are near 51240?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 51240.